Below is the file 'README' from this revision. You can also download the file.

This is a network configuration switcher for the ifup / ifdown system. It
works entirely by parsing /etc/network/interfaces and /etc/network/ifstate.
These files are watched, and if they change the applet notices and updates.

Big, notable features of this applet:
  * using /sbin/ifup and /sbin/ifdown is fine. The applet will update
    as you use those commands.
  * if you edit /etc/network/interfaces the applet will update as you
    change the file. So if you add another possible mapping or interface
    to map to, it will immediately appear in the applet menus.

The main applet menu displays:
   * any physical network interface (with some exclusions for interfaces such
     as the loopback)
   * any interface which has the method "ppp" or "wvdial"

See interfaces.example for how to set up /etc/network/interfaces to
play nicely with this program. As a minimum you should have some virtual
interfaces to which you can map your physical interfaces. If you wish
the ifup and ifdown commands to work as if they had been called from
interapplet, then you should specify the interapplet mapping script
in your interfaces file.

Bug reports are welcome: please send them to grahame@angrygoats.net
with as much information as possible.

Finally, if you like this software feel free to send me a postcard :-)
  Grahame Bowland
  PO BOX 3105
  BROADWAY
  Nedlands WA 6009
  Australia